Stale Sessions

["Shane McKinley" <shane@hemc.coop>]

I have searched and searched, read the archives, etc. I feel that I may have a unique problem and just missing a piece of the puzzle.

 

I have been running freeradius with a mysql database for over a year now. It is very stable and I am generally pleased.

 

I have been having stale session issues on every one of my NASes. They range from Cisco 7200, Cisco 2600, and Livingston Portmasters. They all have stale sessions in the mysql database that never recieve a stop time. I am almost certain there are no network issues because it seems that start packets are never lost or update packets either.

 

This is the aaa config on my Ciscos:

 

aaa new-model
!
!
aaa authentication login default local group radius
aaa authentication login telnet line
aaa authentication ppp default if-needed local group radius
aaa authorization network default local group radius
aaa authorization network iemcdslauth group radius local
aaa accounting delay-start
aaa accounting update newinfo
aaa accounting network default start-stop group radius
aaa session-id common

!

radius-server attribute nas-port format d
radius-server host X.X.X.X auth-port 1645 acct-port 1646
radius-server key 7 XXXXXXXXXXXXXXX

 

So the question is, why are my NASs not sending stop packets, or why is the freeradius server not processing the stop packets?

 

Is this a common problem? Feel free to also point me to some documents that may be of assistance. Maybe I don't have enough resources to process the commands? I have about 1500 users.

 

This is my setup:

 

openSuSE 10.2

Freeradius 1.1.13

MySQL 5.0.26

128MB RAM

Pentium III

 

Thanks for any help,

 

Shane